| novice | -- 05-26-2020 @ 8:46 PM |
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Truck has been sitting for several years, now running great but gets hot pretty fast. No themostats installed does have aux pusher fan on front of radiator. Any suggestions on best coolent or water additive. I not a great mechanic but its been a learning process. Any help appreciated..Novice
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| carcrazy | -- 05-26-2020 @ 10:58 PM |
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Will the vehicle be operated at temperatures below the freezing point? If not, for coolant use distilled water with some water pump lubricant. The best coolant is distilled water, it is free of minerals and won't add deposits to the cooling system passages. The water pump lubricant will lubricate the water pump and prevent rust from forming in the cooling system. If the truck has been setting for several years, before changing the coolant, you should flush out the cooling system with a back flushing kit that you can buy from the local auto parts store. Prestone makes one that works well. Does the truck just have the pusher type fan in front of the radiator? Does the truck have a crankshaft driven fan on the engine? Pusher type fans tend to block airflow through the radiator and are not as efficient as a puller type of fan that is mounted behind the radiator. This message was edited by carcrazy on 5-26-20 @ 11:03 PM
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| novice | -- 05-26-2020 @ 11:19 PM |
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Truck is living in Ft Worth Texas area. So cold temp not normally a problem. It also has a crankshaft driven fan. As well as offenhauser alum. heads. Is water pumps lub sold as that or does it have another name, never heard of it. Thanks for you response.
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| trjford8 | -- 05-27-2020 @ 6:14 AM |
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If it has been setting for several years and has aluminum heads, it is very likely that electrolysis has plugged the radiator. The radiator needs to be removed and taken to a radiator shop to be rodded out. Then you need to flush out the block.
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| alanwoodieman | -- 05-27-2020 @ 7:20 PM |
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remove the radiator hoses and force water from the bottom up to back flush the rad, if the water flow is bad then that is the problem. while you are at it run water from the top down thru the engine and see what comes out
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